All Terrain Services Maeda MC 285 Mini Crawler Crane or Spider Crane is the most versatile mini crawler with a narrow body width of 750mm which will fit through a standard doorway. It has an impressive lifting capacity of 2.82 Tons and lifting height of 8.7 meters combined with programmable moment limiter and remote control operation for complete operator safety and efficiency.
The 3 smaller models with a body width of only 590mm ~ 750mm can travel through a standard single door for indoor use.
Equipped with crawlers, travelling into confined area where bigger cranes or truck cranes cannot access is an easy job for the Maeda spider cranes.
The optional electric motor ensures work can be carried out cleanly indoors without any concern for gas emissions.
Compact and light weight, mini spider cranes can be lifted up to a site by larger cranes or service elevators, then often used for various construction works such as material handling and curtain wall lifting from inside buildings or on roof tops.
By stabilizing the body with its four outriggers, lifts of up to 8.0t can be carried out. Even on a site with obstacles or on steps, outriggers make stable lifting work possible.
With up to 8.0t capacity, MC series are used for many different applications such as construction, civil engineering and heavy load installation works.
Maeda’s winch uses a disk brake which is highly durable for continuous use. Operations can be carried out for a long period of time from roof tops or construction sites.
Tipping Prevention System
To prevent tipping accidents caused by overloading the crane, our Moment Limiter System (Safe Load Indicator) is equipped as our top safety standard.
When the load reaches 90% of the rated total load, the crane starts a warning with rotary lamps and audible alarm.
When the load reaches 100%, the crane will automatically stop to prevent tipping. With a digital display, the operator can continuously check working status.
Working Envelope Setting
The Moment Limiter (Safe Load Indicator) can set a lifting height limit, working radius limit, and angle limit.
Working range of the boom can be set as you wish, and the boom will automatically stop at the set point.
This function is very useful for narrow places with obstacles or limitations such as power plants and factories.
The Outrigger Interlock System restricts activation of the outriggers if the boom is not stowed and outriggers are not rotated to set position. It detects boom slew and derrick position, and outrigger rotation position.
The Crane Interlock System enables the crane to work if outriggers are grounded correctly. It detects outrigger rotatory position and grounding condition.
Accurate positioning of the load is possible with a single crane operative using the Remote Control.
The Remote Control is equipped with a micro-speed mode for precision work. There is also a function that allows the user to set speed.
The operator can confirm actual load and RTL (rated total load) using the LCD monitor during operation.
Searcher Hook and Fly Jib
By using the optional searcher hook, the highest reach of the crane can be achieved even in places with height limitations due to ceilings or under the roof eaves. This is very often used for glazing works.
Also an optional fly jib mounted at the tip of the boom can create further lifting height.
|Crane capacity||2.82t ×1.4 m|
|Max. working radius||8.205 m x 0.15t|
|Max. lifting Height||Approx 8.7 m|
|Hook speed||9.3 m / min (with 4 layers & 4 falls)|
|Wire rope||IWRC 6 X Fi (29) φ7 X 48 m|
|Telescopic system||Boom length||2.535 m – 8.575 m|
|Telescoping speed||6.04 m / 22 sec|
|Boom type||Fully automatic 5 section boom|
|Swing angle /time||360°(continuous) / 1.0 rpm|
|Outrigger||Box type × 4 pcs|
|Traction system||Drive||Hydrostatic type, Stepless forward and reverse|
|Travel speed||0 – 2.2 km / h|
|Crawler ground length||975 mm|
|Ground pressure||43.2 Kpa (0.44 kg / cm2)|
|Crawler width||200 mm|
|Max. output||7.4 KW / 2,500min-1 rpm (10.1 ps/2500rpm)|
|Starting method||Electric starting|
|Fuel tank capacity||12 L|
|Overall length x overall width x overall height||2,750 mm × 750 mm × 1,470 mm|
|Machine weight||1,960 kg|
|Standard Equipment||Overwind protection, Angle indicator, Hydraulic safety valve, Wire rope latch, Level, Machine body inclination alarm, EMO switch, Moment limiter, Working safety lamp, Data logger, Outrigger setting lamp, Crane and outrigger interlock device|
|Optional Equipment||White rubber tracks, Single fall hook, Searcher hook|
Total Rated Load (Outriggers at Maximum position)
|Working Radius (m)||Total Rated Load (kg)||Working Radius(m)||Total Rated Load (kg)||Working Radius (m)||Total Rated Load (kg)||Working Radius (m)||Total Rated Load (kg)|
|Less than1.4||2820||Less than3.0||1220||Less than3.6||820||Less than4.0||550|
Working Range Chart